SU928020A1 - Header - Google Patents

Description

(54) PASSAGE COMBINE

one

The invention relates to roadheaders with a boom actuator, intended for carrying out horizontal and inclined mining openings.

A driving machine is known, in which a crawler track, a loading device, a conveyor, a boom actuator with a cutting head, a rotational drive of the cutting head and a boom turning mechanism, are mounted on the frame, while the spacers are mounted on the frame.

The disadvantage of this combine is that the jacks loosen only the supporting part of the combine in working, and the cutting head is fixed on the boom forming a long undood console, while the vibratory oscillations of the head do not go out and extend to the nodes and mechanisms of the combine right up to its supporting part .

The closest to the invention by technical suishosti and achievable

the result / is a sinking harvester comprising a running gear, a loading device, a conveyor, a frame with expansion jacks, a platform that is pivotally connected to the frame, and an actuator mounted on the platform, which contains a boom with a cutting head, a boom swing mechanism and drive rotation of the cutting head.

In the well-known combine, the ogrela has been reinforced and its reach has been reduced, but the disadvantages listed previously have not been eliminated: the cutting head is mounted on a relatively long, unstretched console, including the boom and platform, no. Elements and means of protection against vibration, limiting the magnitude and propagation of oscillations from the cutting head, which leads to a decrease in reliability fe the lifetime of components and parts of the combine.

Claims (2)

The invention is the protection of the combine; from vibration. This goal is achieved due to the fact that the platform is equipped with expansion jacks, the executive body has a hand-set, and the cutting head is mounted on the handles, which is connected to the boom by means of a hinge and amortizers. In addition, the boom rotation mechanism is made in the form of a self-braking worm gearbox, the worm gear of which is rigidly connected to the boom, the geometric axis of the arm rotation being aligned with the rotation axis of the black wheel. FIG. 1 shows a tunneling machine, side view; in fig. 2 - the same, top view; in fig. 3 shows section A-A in FIG. FIG. 4 is a section BB in FIG. The heading machine has a chassis 1, a loading device 2, rigidly connected to frame 3, a conveyor 4 connected to the loading device for reloading broken rock into transport means, an executive body 5 with boom b, with which by means of a hinge 7 and shock absorbers 8 and 9 is connected to the handle 10, the cutting head 11 is mounted on the latter with the possibility of rotation. The executive body 5 contains a drive 12 for turning the cutting head and a boom turning mechanism 13 and is mounted on a platform 14 connected to the frame 3 of the combine by means of The hinge 15 and jack 16. In this case, the drive 12 and the gear of the worm gear 17 of the boom swing mechanism 13 are rigidly connected to the platform 14, and the worm gear 18 is fixed rotatably with respect to the gear housing 17 and rigidly connected to the boom 6 . Handle 10 has the ability to rotate relative to the boom at a certain angle in the plane of rotation of the boom and is placed between the shock absorbers 8 and 9 fixed to the boom. The geometrical axis of rotation of the handle 1O is aligned with the axis of rotation of the worm gear 18. This axis in the wheel 18, the boom 16 and the handle 10 has a cavity in which the shaft-2 is mounted on bearings in the glass 19, which by means of the coupling 21 and the shaft 22 is connected to a bevel gear 23 mounted on bearings 24 and 25. In the handle 1O, a shaft 26 is mounted connected to a cutting head 11 to a bevel gear wheel 27, and the shaft 28 is mounted in the drive housing of the rotation in the cup 2 on the platform 14 are rigidly fixed spacers DZ and 31 jacks. Spacer jacks 32 and 33 are connected with frame 3. Hydrojacks 34 and 35 are connected to the worm gear 18 by means of two screws (not shown). The combine works as follows. With the handle turned to the extreme position; With the cutting head 11, the platform 14 with the help of the jack 16 is lowered to its lowest position. The rods of the spacer jacks 30-33 extend and burst into the walls of the excavation, and the position of the platform 14 is fixed therewith. The actuator 12 rotates the cutting head 11 through the gearing system. At the same time, the hydraulic jacks 34 and 35 rotate the worm gear 18 relative to the gearbox housing 17. Together with the wheel 18, the boom 6 rotates, which through the shock absorber 8 pulls the handle 10 behind itself, pressing the rotary cutter head to slaughter. During the destruction process, oscillations of the cutting head, which, together with the hand 10, oscillate with respect to the boom 6, occur, affect shock absorbers 8 and 9. At the same time, the vibration oscillations are partially damped by shock absorbers and expansion jacks 30 and 31 of the platform, which allows to limit the harmful effects of vibration on nodes and mechanisms of the combine. After working out the lower part of the spacer effort from the jacks 30 and 31 of the platform 14 is reduced. The platform with the help of the jack 16 is turned around the hinge 15 to the upper position, the jacks 30 and 31 are re-bulging in the walls of the excavation. After the destruction of the entire surface of the slab, the thrust force from the ZO-ZZ jacks is removed by the amount of chips, the harvester using the chassis 1-. is given to the breast by the amount of chips. The cycle is repeated. The loading device 2 picks up the broken rock mass, and the conveyor 4 overloads it into vehicles during the entire cycle. The design of the proposed combine makes it possible to limit vibration oscillations in size and in the area of their distribution to the combine nodes. This is achieved by unfastening the platform, which reduces, in particular, the length of the console on which the cutting head is installed, and by connecting the boom to the arm by means of a hinge and shock absorbers, which makes it possible to cut off and smooth out part of the vibrations. Claim 1. Bone harvester, including chassis, loading device, conveyor, frame with spacer jacks, platform pivotally connected to the frame, as well as an actuator mounted on the platform containing a boom with a cutting head, a boom swing mechanism and a rotation drive head cutter, characterized in that, in order to protect the combine . (  -trrr: g FIG. from vibration, the platform is equipped with expansion jacks, the actuator has a handle, and the cutting head is installed: on the handle, which is connected to the boom by means of a hinge and shock absorbers. 2. A combine harvester according to claim 1, in which the boom turning mechanism is made in the form of a self-worm gearbox of a worm gearbox, the worm wheel of which is rigidly connected with the boom, while the geometrical axis of the hand crank These are combined with the axis of rotation of the worm wheel. Sources of information taken into account in the examination 1. USSR author's certificate № 468ОЗ, cl. E 21 C 27/24, 1973. 2. USSR author's certificate number 373410, cl. E 21 C 27/24, 1970.